🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.65 AU - 0.93 AU

Year: 258 Days

Day: 32.4 Hours

Environment

Temp: 113 °C

Axial Tilt: 20.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 49,502,322 km

• M1: 205,398 km (0.12 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.67 AU - 1.09 AU

Year: 303 Days

Day: 31.2 Hours

Environment

Temp: 117 °C

Axial Tilt: 29.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.32 AU - 3.64 AU

Year: 1888 Days

Day: 22.3 Hours

Environment

Temp: -94 °C

Axial Tilt: 32 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.58 AU - 3.8 AU

Year: 2092 Days

Day: 32.8 Hours

Environment

Temp: -100 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.2

Radius: 10

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 7.69 AU - 8.03 AU

Year: 8089 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,502,322 km

• M1: 124,465 km (0.112 R)
• M2: 858,841 km (0.116 R)
• M3: 2,589,689 km (0.118 R)
• M4: 4,152,837 km (0.077 R)
• M5: 4,902,771 km (0.12 R)
• M6: 6,391,419 km (0.103 R)
• M7: 7,669,733 km (0.104 R)
• M8: 9,174,688 km (0.111 R)
• M9: 10,867,687 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 216.8

Radius: 5.3

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 12.06 AU - 15.38 AU

Year: 18655 Days

Day: 21.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,502,322 km

• M1: 66,122 km (0.108 R)
• M2: 232,774 km (0.075 R)
• M3: 467,344 km (0.113 R)
• M4: 1,116,599 km (0.11 R)
• M5: 1,510,340 km (0.079 R)
• M6: 2,672,865 km (0.115 R)
• M7: 8,841,085 km (0.083 R)
• M8: 19,139,851 km (0.104 R)
• M9: 25,854,850 km (0.055 R)
• M10: 32,732,313 km (0.056 R)
• M11: 39,319,556 km (0.032 R)
• M12: 41,258,195 km (0.062 R)
• M13: 41,521,338 km (0.079 R)
• M14: 42,451,388 km (0.118 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 16,133 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit